I've just purchased a Elite 200 INT and am trying to put it together. The CoralVue TV guide suggests that the red and grey outlet from the pump should go through the hole in bubble plate 2, part f. However the grey ring around the outlet piece seems slightly to large for the hole in the skimmer body. Should it require some force to install, or has the set up changed from V1 to V2, e.g. the silencer now fits differently to the original guide.